<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Hello</title>
<style type="text/css">
.layout-side {
	position: fixed
}

.layout-body {
	position: absolute;
	width: 60%;
	height: 80%;
	left: 30%;
}
</style>
</head>
<body>
	<h1>Hello Spring Boot</h1>
	<ul class="layout-side">
		<li><a href="about:blank" target="frame">about:blank</a></li>
		<li><a href="/hello" target="frame">/hello</a></li>
		<li><a href="/mono" target="frame">/mono</a></li>
		<li><a href="/flux" target="frame">/flux</a></li>
		<li><a href="/stream" target="_black">/stream</a></li>
	</ul>
	<iframe class="layout-body" name="frame" src="about:blank"> </iframe>
</body>
</html>